code: def envs():
      descs = [
          ["SFFF", "FHFH", "FFFH", "HFFG"],
          ["SFFF", "FFFH", "FHFH", "HFFG"],
          ["SFFF", "FFFH", "FHFH", "FFFG"],
          ["SFFF", "FFFF", "FFFF", "FFFF"],
          ["SHFF", "HHFF", "FFFF", "FFFF"],
      ]
      return [GridWorldEnv(desc=desc) for desc in descs]
  
file_path: garage/tests/garage/sampler/test_fragment_worker.py
imports: import math
  import pprint
  import numpy
  import pytest
  from garage import EpisodeBatch, StepType
  from garage.envs import GridWorldEnv, PointEnv
  from garage.experiment.task_sampler import SetTaskSampler
  from garage.np.policies import FixedPolicy, ScriptedPolicy
  from garage.sampler import FragmentWorker, LocalSampler, WorkerFactory
label_desc: Use image node_id 3 for calling a global function with example usage: envs() and returns: unknown